We will be on Annual leave out the country for a family Holiday from 10th August and back open on Tuesday 30th, All orders made after the 10th will be processed on our return.

The RACE valve (4AN) offers unbeatable water/methanol injection CONTROL and most elegant integration options. Laser welded 4AN fittings and tiny size make packaging and integration simple. This part offers the highest performance in the entire industry. Unlike all other options on the market, RACE valves can be used optimally with many standard WMI controllers. They can be run at full 220psi pump pressure and at high cycle speeds with no limitations for usage time. Run them: HARD and ALL DAY.

Normally, WMI pumps are pulse width modulated to match flow rates to engine load. They're big and powerful. Also relatively slow to respond to input commands. This method is quite adequate for basic air cooling. Real engine management, however, requires far more speed and precision. Fuel injectors are FAST but typically work at only 43.5 - 58psi on the gauge. They are way too weak to take water/meth pressure (and most will rust solid after mere hours of use).


RACE valves are corrosion-resistant and deliver EFI control precision at 220psi. -amazing! Maximum recommended flow at such pressure is 500cc/minute.

Crisp response requires short lines or direct connection to each nozzle holder. For multiple nozzle connections, we recommend multiple valves may be required. One per cylinder is elite. The best balance of control vs. expense comes from a single valve per every two cylinders. However, one per three works adequately. (One per four cylinders typically results in a narrow but still very precise control range.)

Technical parameters:

Official max pressure: 220 psi

Material: SS304 alloy for durability with 100% water or 100% methanol (or any blend)

Thread type: -4AN

Position: normally closed

Length (tip to tip): 80mm (3.25")

Valve body diameter 15mm (0.60")

Wire leads: 16 gauge

Coil: 20.55W

Average current draw: 1.5A at 13.7V

Recommended Operating Frequency: 30 - 60Hz at 220psi

Unlimited duty cycle


Special Notes:

No need to drop pressure or control speed to enjoy the industry's finest control.

Works with all controllers from Cortex EBC, Torqbyte, Snow Performance, Coolingmist plus almost ANY standalone ECU.

Officially recognized and supported by SIRHC Labs (Cortex EBC).

AEM water/meth controllers are not compatible.

Supplied with simple wiring harness

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RACE Valve solenoid

  • Product Code:RACEvalve
  • Availability:In Stock
  • £83.29

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